Metallic dust excluder for universal joints



BEST AVAILABLE COP:

Nov. 2 1926. 1,605,446

4 F. F. KISHLINE METALLIC DUST EXCLUDER FOR UNIVERSAL JOINTS Filed Nov. 15 1925 rhoxn r. KISHLINE,

, .mobile';;transmission 'mechanisms. Its obiii! Patented Nov. 2, 1926.

is all metaidut ject s arelt'o' provide a pr'actical all metal housing which ;will' permit? relative lohgiand? movements 'of the meinher of the joint, and prevent entrance I into the 'joingand escape of grease The gametes forms of ,I iv rsal. j i 1t$= a ing tw m hers, ,onemembe ben g the driving member,

and llt-heg Otherl'fthe drive r,m e111ber :of the j oint,.[ with' oneiof [the members telescoping into the ather, "and partic'ularly to such joints provided with causing the members to rotate in unison, while a permitting;longitudinalfand angular movement of the driven 5 member,. during rotation, with respect to 1 the driving member.

III-tile accompanying drawings I have illustrated one practical embodiment of the inventiomend will hereinafter describe the same with reference thereto, and summarize in the claims the novel features of construction and; novel combinations of parts for which protection is desired [In said drawings:.1'1,j

Figure 1 is alongifudinal; sectional view of a wellknow'n universal joint,l with my' the drawings'the drivingmember comprises acasingicomposed of two separable parts 8;

8?,wvhich are arranged end to end and are fiangedon. their meeting edges and united by;bolts. The member 8 has a central bore and diametricallyopposite :slots which are engagedby balls'9fion oppositeends of a pin :transfixing the head. 9. of the driven I member or shaftsectioni). A helical spring.

,6 maybe interposed between the head 9 and the adjacent face of the casing 8 to normally press-the shaft .9 outward. The slots and balls constitute a driving connection between the parts 8 and .9, andshaft 9 is also capableeof oscillatory or angular EWRWALABLE com i is rotated or DETROIT? nronrenmns'srenoiz momma onrvnRsAnrnon- Uors oo.,-=mo;, or' nnrnonr, QMICHIGANaA ooRroRA'noN-oF ELAWARE...

'movement'jrelative1 to the part 8,] as indiexclulder for universal-i coupl ngs or jo nts,

dotted-{lines in' Figure'l; this oscilniovementofballs99'in the'slots 8, and by right e c ttathe il s hu erm in un versal"'angnlarfmovement 'of shaft 9 'rel-.

latory 'gm'ovement being permitted by the the pivoting ftheshaft'Q n the pin 9 1a:

ative'to the casing 8. 'The construction also pe m s s e ldji al. was "9 h f 'j 9 l tive wherebyffthe ngf' isQrot ate'd, and "shaft 9 capable); eroscillatory and; longitudinal movements relative to the casing, as 'above described. vThe parts, described arewell known and need: no further "illustration or may be any desired 'coIi tfliQtionQ H I rd narily when applied 'to automobiles; a flexible so-called"boot of leather or other flexiblematerial is attached, at one end,fto the open' endfo'f part I8," fland atj the other end," to the'shaft 9 In the present inven tion I, eliminatethijs flexibleboot, and proexplzi' Ilfationg; and. the universal joint per se vide a novel 1 all metal boot or housing. QThe'ffnovel' metal housing comprises in" brief fOu metaIliomembers 1,253, and 4, preferably inadeoutjpof pressed steel or other suitable'fmetal, three washers, and a. spring. [The memberfl is approximately a hollow semis'phere in form and is'adapted "to enclose thejoute'r'end of the part 80f the casin and asjshown is providedat its 1 larger open :end with an annular\ part 1 adapted to fit on an annular shoulder on the end of the part 8 of thecasing. The mempart 8, as shown; and is provided with a central ,open ngtsurrounded by an inwardly he'part 8 ofthe ca'siiig heattached 1n the usual ma-n ner to a driving shaft S connected w' hffthe engine, not shown,

d "wi the. iasing, [while i her 1- projects slightly beyond the end of projectinglflange l 'and around and exterior I to this flange P. Member 1 is formed with an approximately -V-shaped recess 1for the accommodationof a washer W hereinafter referred to.' The portion 1 of part 1 (between the groove 1 and the portion 1) is parti-spherical on its exterior surface for a purposehereinafter explained.

The second member 2 of the housing is tubular and has one end fitted within the opening 8 in the end of the casing member 8 opposite the shaft S, and may be secured able washer \V, which may be of any suitable material, but is preferably of cork.

The third member 3 ot the hous ng 18 also preferably made of stamped metal and has a'major portion 3? which is parti-spherical on its inner surface, to correspond w th the exterior parti-spherical surface of the portion 1 of the member 1; and the inner surface of the portion 3 has a close sliding fit with the outer surface of the portion 1 as shown in Figure l, and a washer W interposed between these two portions prevent the entry of any dust ordirt into the casing 8 as is obvious.

'l he'memberg has a central opening which is surrounded by an outwardly oppositely projecting part 3 whose inner surface is partiesphcrical; the part 3? extends oppositely to the part 37", and is of less diameter than the part 3?.

The inner spherical surface of. the part 3 is adapted to contact with the parti spherical surface of a washer W which is fitted in an annular groove 4 on the inner end of the fourth member at of the casing.

The fourth member 4 is a tubular shell, preferably of drawn metal, and is of slightly larger diameter than the shaft 9 and has a sliding fit thereon. As shown the member i isv provided on one end witha U-shaped flange 4, the recess,- in the flange forming an annular seat for the washer W. The shaft 9 has a slightly reduced portion 9 which is surrounded by the sleeve member a. A wjasher V is strung on the reduced portion 9 and contacts with the flange 4 on the end of the member 4. A. coil spring 5 is strung on the part 9, within the sleeve member lfand between the washer V and the shoulder 9 on the. shaft 9 as shown in Figure 1,. As shown, a washer 5 may be interposed between thespring 5 and the washer Vt within the member 4:. This spring '5 tends; to yieldingly force the member 4, toward the casing and cause the washer \V' to tightly and yieldingly engage the part 3? of member 3, and in turn cause the part 3 of member 3 to closely but slidably engage portion 1 of member 1 and thus the several partsare maintained in contact while capable of such relative sliding motion as will permit the shaft 9 to oscillate as is req'uired in the operation of the joint.

. If desired a sleeve 6 might be placed on the shaft; 9 and within the member 4: as shown in Figure 1. This sleeve may be an BEST AVAlLABl EC IQP.

integral tube, and the member 4 could be split, or made of two opposite similar halve-s P as indicated in Figure 3, and assembled around the sleeve 6 and secured thereto by annular. clamps. i

It will be seen thatwhile member 1 of the housing is fast to the part 8, member 3 of the housing is capable of un-iversal movement relatively to the member 1 and the washer W By reason of this capability of angular movement of member 3 relative to the part 1 and the washer W and the latters slidability on the shaft 9, under the action of member 4 and spring 5 the shaft 9 is permitted to freely move longitudinally and angularly with respect to casing 8 within certain limits, as indicated in dotted lines in Figure 1. The extent of angular movement of member 3 relative to the casing 8 is amply suflicient to take care of all ordinary deflections of the joint in the practical operation oiuse of theuniversal joint.

The novel all metal housing or boot does not interfere with the necessary free angular and longitudinal movements of the joint members in the practical operation thereof; and effectively excludes. dust from the joint and retains grease therein.

The said metallic housing or boot readily accommodates itself to. all angular positions of the members of the joint withina given radius, and relative longitudinal play of the members of the coupling 'does not injure or open the joints of the housing, dust' is effectively excluded from the housing, and grease confined therein.

I claim:

1. For a universal joint having a'h'ollow casing, a shaft entering the casing, and a universal connection between the casing and the shaft; a metallic housing comprising a member attached to the, casing" and having an outer parti-spheric'al portion; a second housing member loosely surrounding the shaft and having a parti-spherical portion slidably fitted to the parti-s'pherical portion of the first member and an oppositely extending parti-spheri cal'portion; and aslidable member on the shaft engagingthe la'st mentioned portion; and spring'means for holding the members in engagement.

2. A metallic housing for a universal joint having a hollow casing, a shaft entering the casing, and a universal, connection between the casing and the shaft; said housing comprising a member fixedly attached to the casing and having an outer parti-spherical portion; a second housing member loosely surrounding the shaft and having a parti-spherical portion slidably fitted to the parti-spherical portion of the first member andlan oppositely extending parti-spherica-l portion; a dust excluding washer between the spherical portions. of said first and second members, and a slid- 13665146? BEST AVAlLA BLE cor. a.

able hatter 011- the use efigagih tlie said 1.: oppositely extending portion;- and spring means for 'olding the members in engagea tubular member attached to the casing andextending axially of sa'id'portion; a washer carried'by the said portion; a second housing member-loosely surrounding the shaft and'jhavi'ng a parti-spherical portion slide-- bly 'fittedt'o the 'parti-spherical portion of the'first member and'engaging said washer,

andj-springmeans for pressing the members into'engagement;

4. Jr metallic housing foruniversal joints having a hollow casing, a shaft entering the casing, and a universal connection between the casing and the'shaft; said houslngcomprising a-member attached to the-casing and having an outer p'arti-spherical portion; a

tubular member'attached to the casing and projecting into the first member; a washer carried by said-portion;-'a second housing member loosely surrounding the-shaft and having a parti-spherical portion slidably fitted to the partispherical portion of the first member and engaging said washer and also having an oppositely extending partispherical portion; and a slidable member on the shaft engaging the latter portion; and spring means for pressing the members into engagement.

5. For a universal joint having a hollow casing, a shaft entering the hollow casing, and a universal connection between the hollow end of the casing and the shaft; a metallic housing comprising a member fixedly attached to the casing and having an outer part i-spherical portion; a second housing member loosely surrounding the shaft and having a parti-spherical portion slidably engaging the parti-spherical portion of the first member and also having an oppositely extending parti-spherical portion; a slidable sleeve member on the shaft projecting into said oppositely extending portion of the second member: a washer interposed between said slidable sleeve member and the said oppositely extending portion of the second member, and spring means for holding the members of the housing in engagement.

6. A metallic housing for universal joints having a hollow casing, a shaft entering the hollow casing, and a universal connection between the hollow end of the casing and the shaft; said housing comprising a member fixedly attached to the casing and having an outer parti-spherical portion; a second housing member loosely surrounding the shaft and having a first partispherical portion slida bly ien'gagirig the 'i parti-sph'erical portion of the f rst memberand also having an =oppositely extending parti-spherical portion a' slidable sleeve member on the shaft projecting into' said m oppositely extending portion "ofthe second 1 member; a dust excluding washerb'etweenthe spherical portions of "said 'first and's'ec 0nd "members; a washer interposed between said slidable sleeve member and the sai'd 'ia oppositely extending portion of' the second" member, and spring means *forholding :the members of the housing"in'gengagementi 7. For a universal jo'inthaving aifhollowi casin a shaft entering the hollow-casing,-

i and a universal connectionbetween the hol i J- low end of thec'a-singand theshaft a-metal-' lic housing comprisinga member fixedly at--: 35

tached to 'the casim an'd: having an outer'c aarti-s herical i ortlon a tubular memben 3 l P P attached to the casing and projecting into; the first -member;- a; secondghousing: mein ber loosely surrounding -thew shaftg and-x;

having a first partisphericalx -portionslid-i: ably engaging the pa-rti-spheri'cal ':.-p'or-- I tion of the first 'memb'erj a' slidablesleeve member on :the"sha'ft; a washeri interposed between said slidab1esleeve m'einberand the second member, and s ringmeans forhold ing the members of t e 'housing'in engage-$ ment.

8. For a universal joint having a hollow casing, a shaft entering the hollow casing, and a universal connection between the hollow end of the casing and the shaft; a metallic housing comprising a member fixedly attached to the casing and having an outer parti-spherical portion; a tubular member attached to the casing and projecting into the first member; a second housing member loosely surrounding the shaft and having a first parti-spherical portion slidably engaging the parti-spherioal portion of the first member and also having an oppositely extending parti-spherical portion; a slidable sleeve member on the shaft projecting into said oppositely extending partispherical portion of the second member; a washer interposed between said slidable sleeve member and the said oppositely extending portion of the second member, and spring means for holding the members of the housing in engagement.

9. For a universal joint having a hollow casing, a shaft entering the hollow casing, and a universal connection between the hollow end of the casing and the shaft; a metallic housing comprising a first housing member fixedly attached to the hollow casing and having an outer parti-spherical portion; a second housing member loosely surrounding the shaft and having a projecting partispherical portion slidably engaging the parti-spherical portion of the first member and also having an oppositely extending parti-s herical portion of smaller diameter; a slidable sleeve on the shaft projecting into said'oppositely extending portion of the sec. ondmember; a washer interposed between said sleeve and, the oppositely extending portion of the. second member; anda spring Within said sleeve for pressing the members of the housing into engagement.

10. For a universal joint having a hollow casing, a shaft entering the hollow casing, and; a universal connection between the hol- 10W end of, the-casing and the shaft; a metallic housing comprising a first housing member fixedly attached to the hollow casing and having an outer parti-spherical portion; a tubular member attached to the casing and projecting; into the first member; a second housing member loosely surrounding the shaft and having an outwardly projecting parti-spherical portion slidably engaging the parti-spherical portion of the first member and also having an oppositely extending parti-spherical portion of smaller diameter;

a slidable sleeve member on the shaft pro-- ecting intosaid oppositely extending portion of the second member; a washer interposed between saidslidable sleeve member and the oppositely extending portion of the second member; and a spring within said sleeve for pressing the member of the housing into en- BEST AVAILABLE COP\ gagement with the partnspherical portion of the first member.

1 1. For a universal joint having a hollow casing, a shaft entering the hollow casing, and a universal connection between the hollow end of the casing and the shaft; a. metal-, lic housing comprising a first housing member fixedly attached to the hollow casing and having an outer parti-spherical portion; a tubular member attached to the casing and projecting into the. first member; a washer carried by said first member and tubular member; a second housing member loosely surrounding the shatt and having an outwardly projecting parti-spherical portion slidably engaging the parti-spherical portion of the first member and also having a similar oppositely extending. parti-spheri-. cal portion of smaller diameter; a slidable sleeve member on the shatt projecting into said oppositely extending portion of the second member; a washer interposed between said slida'ble sleeve member and the oppositely extending portion of the second member; and a spring within said sleeve for pressing the members of the housing into engagement.

In testimony that I claim the foregoing as my own, 1 afiix my signature.

FLOYD F. KIYSHLIANE. 

